n48 1,2,3,4,5,6,7,8; 0,2,8,9,10,11,12,13; 0,1,8,14,15,16,17,18; 0,9,14,19,20,21,22,23; 0,10,15,19,24,25,26,27; 0,11,16,20,24,28,29,30; 0,12,17,21,25,28,31,32; 0,13,18,22,26,29,31,33; 0,1,2,23,27,30,32,33; 1,3,14,23,35,38,40,42; 1,4,15,27,36,40,44,45; 1,5,16,30,38,41,43,45; 1,6,17,32,35,39,41,44; 1,7,18,33,36,39,42,43; 2,3,9,23,36,39,41,45; 2,4,10,27,35,41,42,43; 2,5,11,30,39,40,42,44; 2,6,12,32,36,38,40,43; 2,7,13,33,35,38,44,45; 3,4,31,32,33,34,35,36; 3,5,25,27,32,37,40,41; 3,6,29,30,33,37,38,39; 3,7,24,27,30,34,42,45; 3,8,9,14,24,25,29,31; 4,5,22,23,33,37,42,45; 4,6,20,23,30,34,40,41; 4,7,28,30,32,37,43,44; 4,8,10,15,20,22,28,31; 5,6,26,27,33,34,43,44; 5,7,21,23,32,34,38,39; 5,8,11,16,21,22,25,26; 6,7,19,23,27,35,36,37; 6,8,12,17,19,20,26,29; 7,8,13,18,19,21,24,28; 19,22,25,28,29,37,46,47; 9,12,15,18,19,31,36,46; 10,13,14,17,19,31,35,47; 20,21,24,26,31,34,46,47; 9,11,17,18,21,29,39,47; 12,13,14,16,21,29,38,46; 9,10,16,17,20,25,41,46; 11,12,14,15,20,25,40,47; 9,13,15,16,22,24,45,47; 11,13,15,17,26,28,44,46; 10,12,16,18,26,28,43,47; 10,11,14,18,22,24,42,46; 34,35,37,39,40,43,45,47; 34,36,37,38,41,42,44,46.